Stem locking structure

Abstract

The utility model relates to the technical field of vehicle stem tubes, and particularly discloses a stem locking structure which comprises a stem body and a locking block, the stem body is connected between a handlebar and a front fork vertical tube, a mounting cavity and an extrusion cavity are arranged in the stem body, the mounting cavity is communicated with the extrusion cavity, the front fork vertical tube is inserted into the mounting cavity, and the locking block is arranged on the stem body. The locking block is arranged in the extrusion cavity, makes contact with the front fork vertical pipe and applies extrusion force to the outer side wall of the front fork vertical pipe so that the front fork vertical pipe can be connected to the inner wall of the installation cavity in a pressed mode. By means of the arrangement, a pressing and fixing mode is achieved through friction force between the locking block and the front fork vertical pipe, so that when a vehicle is out of control or is subjected to large external impact, the handlebar stem body and the front fork vertical pipe can move relatively, the anti-locking function is achieved, the driving safety of the vehicle is improved to a great extent, the service life of the vehicle is prolonged to a great extent, and meanwhile the structure is simple. A built-in structural form is adopted, the internal space of the handlebar stem body is fully utilized, and the structure of the whole bicycle is further simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle handlebar pipe technical field especially, a kind of handlebar locking structure. BACKGROUND

[0002] In bicycle and E-bike, handlebar is one of important structural components, its main function is to connect handlebar and front fork, and play the role of support and positioning.

[0003] The locking mode of existing handlebar mostly adopts that handlebar itself deforms and tightly holds front fork vertical pipe, to realize complete fixed locking, this locking mode can cause handlebar and front fork not to move relatively when vehicle is out of control or subjected to external greater impact, and rider is easily damaged by handlebar, which largely exists safety hazard. SUMMARY

[0004] The utility model aims at providing a kind of handlebar locking structure, which can further improve the safety and service life of vehicle.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of handlebar locking structure, comprising:

[0007] Handlebar body, the handlebar body is connected between handlebar and front fork vertical pipe;

[0008] Locking block, the handlebar body is equipped with installation cavity and extrusion cavity, the installation cavity is communicated with the extrusion cavity, the front fork vertical pipe is inserted in the installation cavity, the locking block is arranged in the extrusion cavity, and the locking block contacts and gives the extrusion force to the outside wall of the front fork vertical pipe, so that the front fork vertical pipe is pressed and connected on the inner wall of the installation cavity.

[0009] As a preferred technical scheme of the above-mentioned handlebar locking structure, the handlebar body includes handlebar pipe and handlebar vertical pipe, the handlebar pipe is connected to the handlebar vertical pipe, and the length direction of the handlebar pipe is perpendicular to the length direction of the handlebar vertical pipe, the handlebar pipe is used to connect handlebar, the handlebar vertical pipe is used to connect the front fork vertical pipe, the installation cavity is arranged in the handlebar vertical pipe, and the extrusion cavity is arranged in the handlebar pipe.

[0010] As a preferred technical scheme of the above-mentioned handlebar locking structure, the locking block includes first wedge and second wedge, the second wedge is arranged between the first wedge and the front fork vertical pipe, one side of the first wedge is provided with a driving extrusion slope, both sides of the second wedge are respectively provided with a driven extrusion slope and a pressing plane, the driving extrusion slope and the driven extrusion slope are in contact and extrusion, and the pressing plane is in contact and extrusion with the outside wall of the front fork vertical pipe.

[0011] As a preferred technical scheme of the handlebar locking structure, the other side of the first wedge block is provided with a first inclined surface, and the inner wall of the extrusion cavity is provided with a second inclined surface, and the first inclined surface is in contact with the second inclined surface for extrusion.

[0012] As a preferred technical scheme of the handlebar locking structure, the handlebar locking structure further comprises a first connecting piece, and the first connecting piece penetrates through the first wedge block and is connected with the bottom wall of the extrusion cavity.

[0013] As a preferred technical scheme of the handlebar locking structure, the first connecting piece is a first bolt.

[0014] As a preferred technical scheme of the handlebar locking structure, the mounting cavity is in a tubular shape, the outer peripheral surface of the front fork vertical pipe is attached to the inner wall of the mounting cavity, and the second wedge block gives the front fork vertical pipe a radial extrusion force along the mounting cavity, so as to press the front fork vertical pipe against the inner wall of the mounting cavity.

[0015] As a preferred technical scheme of the handlebar locking structure, the handlebar body is further provided with an opening, and the opening is in communication with the extrusion cavity and the mounting cavity.

[0016] As a preferred technical scheme of the handlebar locking structure, the handlebar locking structure further comprises a cover plate and a second connecting piece, the cover plate is detachably connected to the handlebar body through the second connecting piece, and the cover plate can open or close the opening.

[0017] As a preferred technical scheme of the handlebar locking structure, the second connecting piece is a second bolt.

[0018] The handlebar locking structure has the following beneficial effects:

[0019] The handlebar locking structure comprises a handlebar body and a locking block, the handlebar body is connected between a handlebar and a front fork vertical pipe, the handlebar body is internally provided with a mounting cavity and an extrusion cavity, the mounting cavity is in communication with the extrusion cavity, the front fork vertical pipe is inserted into the mounting cavity, and the locking block is arranged in the extrusion cavity and contacts and gives an extrusion force to the outer side wall of the front fork vertical pipe, so that the front fork vertical pipe is pressed against the inner wall of the mounting cavity. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 The cross-sectional view of the handle vertical locking structure is provided in the utility model.

[0021] Fig. 2 The explosion view of the handle vertical locking structure is provided in the utility model.

[0022] Among them:

[0023] 1, handle body; 101, handle horizontal pipe; 102, handle vertical pipe;

[0024] 2, front fork vertical pipe;

[0025] 3, locking block; 31, first wedge block; 32, second wedge block;

[0026] 4, first connecting piece; 5, cover plate. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0028] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0029] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" should be understood broadly, for example, it can be fixed connection, or detachable connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] Unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] like Figs. 1-2 As shown, this embodiment provides a stem locking structure comprising a stem body 1 and a locking block 3. The stem body 1 is connected between the handlebar and the fork stem 2. The stem body 1 is provided with an installation cavity and an extrusion cavity. The installation cavity communicates with the extrusion cavity, and the fork stem 2 is inserted into the installation cavity. The locking block 3 is disposed in the extrusion cavity and contacts and applies an extrusion force to the outer wall of the fork stem 2, thereby pressing the fork stem 2 against the inner wall of the installation cavity. This arrangement achieves a compression and fixation through friction between the locking block 3 and the fork stem 2. This allows relative movement between the stem body 1 and the fork stem 2 when the vehicle loses control or is subjected to a significant external impact. This ensures smooth steering while also providing an anti-lock braking function, significantly improving the vehicle's driving safety and service life. Furthermore, the internal structure fully utilizes the internal space of the stem body 1 and further simplifies the overall vehicle structure.

[0033] In this embodiment, the stem body 1 includes a crossbar tube 101 and a stem tube 102. The crossbar tube 101 is connected to the stem tube 102, and the length direction of the crossbar tube 101 is perpendicular to the length direction of the stem tube 102. The crossbar tube 101 is used to connect to the handlebars, and the stem tube 102 is used to connect to the front fork stem 2. The stem tube 102 has a mounting cavity, and the crossbar tube 101 has an extrusion cavity. This arrangement, combined with the lateral space of the crossbar tube 101, not only allows for a fastening structure inside, but also allows for a hollowed-out design to reduce weight, and to a certain extent ensures a simple appearance of the stem body 1.

[0034] Specifically, the embodiment exemplarily shows the following scheme: the locking block 3 comprises a first wedge block 31 and a second wedge block 32, the second wedge block 32 is arranged between the first wedge block 31 and the front fork vertical pipe 2, one side of the first wedge block 31 is provided with a driving extrusion inclined surface, two sides of the second wedge block 32 are respectively provided with a driven extrusion inclined surface and a pressing flat surface, the driving extrusion inclined surface and the driven extrusion inclined surface are in contact and extrusion, the pressing flat surface is in contact and extrusion with the outer side wall of the front fork vertical pipe 2, the other side of the first wedge block 31 is provided with a first inclined surface, the inner wall of the extrusion cavity is provided with a second inclined surface, the first inclined surface and the second inclined surface are in contact and extrusion, and the locking structure further comprises a first connecting piece 4, the first connecting piece 4 penetrates the first wedge block 31 and is connected with the bottom wall of the extrusion cavity. Specifically, the first connecting piece 4 is a first bolt. In this way, the front fork vertical pipe 2 is clamped by the inclined surface locking structure of the first wedge block 31 and the second wedge block 32, the first wedge block 31 is pulled downward by the first connecting piece 4, a force perpendicular to the inclined surface is generated by the contact of the inclined surface, and the pulling force is divided into two components, a left component and a downward component, the left component is the main acting force, the second wedge block 32 is forced to move leftward, and the front fork vertical pipe 2 is pressed and tightly contacted, as the first connecting piece 4 is continuously pulled downward, the pressure on the front fork vertical pipe 2 is greater, and the relative pressure and fixation between the handlebar and the front fork during steering are achieved.

[0035] Optionally, in order to further improve the stability and reliability of the front fork vertical pipe 2, the mounting cavity is tubular, the outer circumferential surface of the front fork vertical pipe 2 is attached to the inner wall of the mounting cavity, and the second wedge block 32 gives the front fork vertical pipe 2 a radial extrusion force along the mounting cavity, so that the front fork vertical pipe 2 is pressed and attached to the inner wall of the mounting cavity.

[0036] Optionally, the handlebar body 1 is also provided with an opening, and the opening communicates the extrusion cavity and the mounting cavity.

[0037] Optionally, in order to facilitate the assembly of the locking structure inside the handlebar body 1, the handlebar locking structure further comprises a cover plate 5 and a second connecting piece, the cover plate 5 is detachably connected to the handlebar body 1 through the second connecting piece, and the cover plate 5 can open or close the opening. Specifically, the second connecting piece is a second bolt.

[0038] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not a limitation on the embodiments of the utility model. Based on the above description, other different forms of changes or changes can be made by those skilled in the art. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A structure for locking up a standing body, characterized by, The utility model provides a handlebar locking structure, which comprises: a handlebar body (1) connected between a handlebar and a front fork vertical pipe (2); a locking block (3) provided in the handlebar body (1) and having a mounting cavity and an extrusion cavity, the mounting cavity being communicated with the extrusion cavity, the front fork vertical pipe (2) being inserted into the mounting cavity, and the locking block (3) being arranged in the extrusion cavity and being in contact with and applying extrusion force to the outer wall of the front fork vertical pipe (2) so that the front fork vertical pipe (2) is crimped to the inner wall of the mounting cavity.

2. The structure for locking the upright according to claim 1, wherein The handlebar body (1) comprises a handlebar horizontal pipe (101) and a handlebar vertical pipe (102), the handlebar horizontal pipe (101) being connected to the handlebar vertical pipe (102) and the length direction of the handlebar horizontal pipe (101) being perpendicular to the length direction of the handlebar vertical pipe (102), the handlebar horizontal pipe (101) being used for connecting a handlebar, and the handlebar vertical pipe (102) being used for connecting the front fork vertical pipe (2), the handlebar vertical pipe (102) being provided with the mounting cavity, and the handlebar horizontal pipe (101) being provided with the extrusion cavity.

3. The structure for locking the upright according to claim 2, wherein The locking block (3) comprises a first wedge block (31) and a second wedge block (32), the second wedge block (32) being arranged between the first wedge block (31) and the front fork vertical pipe (2), one side of the first wedge block (31) being provided with a driving extrusion inclined surface, both sides of the second wedge block (32) being respectively provided with a driven extrusion inclined surface and a crimping plane, the driving extrusion inclined surface being in contact with and extruding the driven extrusion inclined surface, and the crimping plane being in contact with and extruding the outer wall of the front fork vertical pipe (2).

4. The structure for locking the upright according to claim 3, wherein The other side of the first wedge block (31) is provided with a first inclined surface, and the inner wall of the extrusion cavity is provided with a second inclined surface, the first inclined surface being in contact with and extruding the second inclined surface.

5. The structure for locking the upright according to claim 3, wherein The handlebar locking structure further comprises a first connecting piece (4) penetrating through the first wedge block (31) and connected to the bottom wall of the extrusion cavity.

6. The structure for locking the upright according to claim 5, wherein The first connecting piece (4) is a first bolt.

7. The structure for locking the upright according to claim 3, wherein The mounting cavity is tubular, the outer circumferential surface of the front fork vertical pipe (2) is attached to the inner wall of the mounting cavity, and the second wedge block (32) applies extrusion force to the front fork vertical pipe (2) along the radial direction of the mounting cavity so that the front fork vertical pipe (2) is crimped to the inner wall of the mounting cavity.

8. The structure for locking up the standing according to any one of claims 1 to 7, wherein The handlebar body (1) is further provided with an opening, and the opening is communicated with the extrusion cavity and the mounting cavity.

9. The structure for locking the upright according to claim 8, wherein The handlebar locking structure further comprises a cover plate (5) and a second connecting piece, the cover plate (5) being detachably connected to the handlebar body (1) through the second connecting piece and being capable of opening or closing the opening.

10. The structure for locking the upright according to claim 9, wherein The second connecting piece is a second bolt.

Images